Adenosine receptors stick through the neuron membrane, so that part of them are on the inside and part is on the outside of the cell. Now, when adenosine, a natural chemic…al in the body, attaches to the adenosine receptor it shifts the shape of the receptor, this shift reaches all the way to the part on the inside of the cell, and causes the receptor to release attached molecules called G-proteins. These g-proteins now float around the inside of the cell and have all sorts of effects, in this case, to inhibit the neuron. Caffeine also binds to the adenosine receptor, but it doesn't activate the receptor. This means that the receptor is totally shut down, and can't work to inhibit the neuron any more. The end effect is to allow the neuron to be more active than it was before the caffeine.

If you were to take a culture of brain cells on a petri dish and submerge them in a caffeine solution, it probably would. But in people, is drinking coffee going to kil…l brain cells? No. Even very high amounts would not.

Caffeine is a stimulant drug, which speeds up the synaptic connections in your brain, increasing reaction times. Nicotine, and Ecstasy do similar things, but are much more da…ngerous, and (in the case of ecstasy) illegal in most countries.

Suggestion: K-Wolf Try looking here http:/www.coolquiz.comtrivia/explain/docscaffeine.asp After reading that I've decided to cut back on caffeine a little..., maybe.…... If you're looking for a short answer: K-Wolf Caffeine is a mild and legal addictive stimulant, it has the same cause and effect as most illegal drugs such as cocaine and heroine. You'll find everything you need to know about it on the link above. Now it is time for me to go get some more Coca.....cola...... ( you do know Coke still has trace amounts of cocaine in it..., maybe combined with caffeine is the reason everyone want to buy the world a Coke...)

Yes caffeine does affect you. Caffeine is a drug and is a very common drug in the United States. To simplify what it does to you, it messes with your brain and keeps you alert…( that's why most people drink coffee in the morning, to wake up)

It causes the adrenal glands to produce adrenaline. This release of adrenaline causes a faster heart rate, opening up of breathing tubes, release of sugar into the bloodst…ream from the liver, tightening of muscles, an increase in blood flow to muscles. Other effects include an increase in dopamine levels.

The brain has two kinds of cells, neurons and glial cells. So if the brain did not have neurons it could still have glial cells, but they have no function in the absence of ne…urons. You would, in effect, have converted the brain into a tumor. Human beings cannot live without a brain. (Nor any irrational animals) We wouldn't be animals, we would be stupid zombies.

If too much caffeine is in your system, there can be a temporary impulse on the other neurons. This sudden impulse will momentarily wake up your brain but will damage some… neurons. The neurons may get aggravated and cause them to shake violently. This friction could cause the neurons to join together with another neuron which would cause an oxypartifamine reaction. That means that the neuron will merge and could cause serious brain problems. If experiencing brain problems, one should immedietely consult a doctor for further advice. DO NOT WASTE TIME GO SEE A DOCTOR